I don’t think any ideological thought ever went into “pro-life”, it’s never been more than a feel good marketing slogan to avoid being “anti-”. I don’t really think it’s a productive game to play “gotcha!” with the term because they don’t think of the slogan as literal, it’s a phrase incorporated into a whole worldview, only within which it does actually make logical sense.
I have a problem with denying anyone their own mind. Whatever the circumstances are or were, the women involved should be the last word in what they thought. Calling them brainwashed just because they changed their minds is condescending and insulting.